feat request: Organization filter support

[FrediKats]

In user profile i can use filter for organization like https://github.com/FrediKats?tab=overview&org=my_org_name. Only activity in organization repo will be show with this parameter.

Without parameter:

With parameter:

Looks like it's not very hard to implement this parameter for your project.

[sallar]

I dont currently have free time to implement this, but would be nice to have